Hi, there!!
My girls both have the same problem. One of my girls has since had the wisdom teeth removed, and the other is scheduled for November (so as not to interfere with school sports schedules!!

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We chose to have an oral surgeon at Children's in Boston do it (mind you, we live less than an hour away from there), so that the anesthesiologist involved would be familiar with MM. We had the oral surgeon consult with both our neurosurgeon (Dr. Scott) and our neurologist before hand, so that she was familiar with the "Do's and Don'ts" of surgery on a person with MM.
The surgery went fine, the only complications we had were with pain management after. Because the girls are on aspirin, the neurologist did not want them to have Ibuprofen after the surgery - which I guess is typically the first line of pain meds they give for oral surgery, since it also reduces swelling. My girls are also allergic to Morphine and Fentanyl, so they had to take Dilaudid - very strong!!! It did nothing for the swelling, and actually my daughter had rebound headaches from it. She ended up in the ER, with a migraine 5 days post surgery, and no reduction in the swelling. After consultation with the neurosurgeon and neurologist, they allowed her to take ibuprofen for no more than 2 weeks. It made a HUGE difference! The swelling went down immediately, the migraine was gone, and she only needed to take it for less than a week, and then she needed no pain meds at all.
My best advice is to make sure the surgeon and anesthesiologist consult with your MM specialists before hand -to discuss ok anesthesia, and post surgery pain control.
I hope that helps!! Good luck!!
Kristen